Frederic Veseli

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When Frederic Veseli swapped Manchester City blue for United red in January 2012, fans of the Red Devils made sure to rub the snub in their rivals' faces, even if the majority hadn't even heard of the player.

His progress in Warren Joyce's reserves team has been gradual, but he has shown his talent when given a good run of games.

Veseli was played at right-back by Sir Alex in United's preseason action, but the Swiss-born defender's preferred position is in the middle.

Once he's bulked up a bit, the Scotsman may feel confident enough in his abilities to blood him at the highest level.

Adnan Januzaj

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Adnan Januzaj may be the player to watch throughout the entirety of Manchester United's youth setup.

The Belgian youngster is a versatile attacking threat in midfield and is capable of playing through the middle and on either wing. He has tremendous skill and pace to burn.

Sir Alex recently said of the 18-year-old: "Nick Powell and Adnan Januzaj were in the reserves on Monday and you say to yourself—these are definite Manchester United first-team players" (via The Independent).